"It's pretty cool to think our daughter is going to be at our wedding," she shared. "We still talk about things we want to do [for the wedding], but it's a big change with the baby coming. We're just trying to focus on one thing first and then we'll do it."

As she prepares to welcome a new child into the world, Duff is waiting a bit longer on those wedding plans. Instead, it's all about eating right and working on her fitness.

"I did Soulcycle through my whole pregnancy and I go on walks with friends," she told Racked Miami. "You know, I've worked through most of it shooting season two of The Real Girl's Kitchen. So I've been active in general."

She added, "I've tried to not go too maternity, but at a certain point you've got to have room, you know?"